Valve.



H. D. HELDEBHAND.

VALVE.

APPLICATION FILED MAY 4. |916.

H. D. HILDEBHAND.

VALVE.

APPLICATION FILED MAYA. I9I6.

Patented June 12, 1917.

3 SHEETS-SHEET 2.

l I I l I l ,I y 1 I f 1 1 l l L l H. D. HILDEBRAND.

VALVE.

gw APPLICATION FILED MAY 4. 1916. Fanghi-p JUUQ l2,

3 SHEETS-SHEET 3.

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ToaZZ 'whom atma concern:

Be it lmown at I, Elmer lD. HuannnANn, resi at Pittsburgh-,in the county of Allegheny and State of Pennsylvania, a

citizen of the United-States, have invented or discovered certain new and useful Improvements inValves, of which improvements the following is a specification. The invention described herein relates to certain improvements in fluid pumps, the invention .being especially applicable pumps employed gases. rllhe invention has for itsI object a valve' formed of a thin flexible and preferably resilient strip of metal so arranged and supported as to. be free to bend to uncover or open the port, and that the openin movement of each strip will be controlle or limited by an adjacent strip. The invention is hereinafter more lin the accompanying drawings forming a part of this specification, Figure 1 is a top 1an view of the improved valve mechanism,

igs. 2, 3 and 4 are sectional views, the planes of sectionl being indicated respeci by the lines ll-ll, IIL-Ill, and lV-lV, Fig. 1; Figs. 5, 6, 7, 8 and 9 are views similar to Fig. 1, and illustrate respectively certain dierent embodiments of the improvements claimed herein; Fig. is a sectional view on a plane indicated by f the line X-X Fig. 7, and Figs. 11 and 12 are top plan views of further modifications of the improved valve mechanism.lv ln the ractice of my invention, the valve block 1 w 'ch may be of .any peripheral contour, is provided in its faces with grooves 2 of a suitable width and de th.' These ooves may be arran d radial y as shown 1n Figs. l, 5, 6 and 1 or may be substantially parallel with each other as shown in Figs. 7, 8, 9 and 12., The ports. 3 for the passage of the liuid are formed 1n the side walls of the grooves, so that there will` be two ports discharging into each groove.

rlhe metal wings, 4 and 5, which 'serve as valves to prevent any reverse dow of the fluid, are made of thin pieces of metal," prefq erablysnrng steel and of a length and width reenter than the corresponding dimensions o the orts. The wings which are arranged to ear against opposite sides of each groove, are supported in such manner specification of nettare Patent. c

to for compressing air and' fully described and y:

Patented Finne l2, iwi?.

that .while entirely free to How or bend as fluid is forced through vthe ports, they will spring back to closed positlon. It will be observed that the wings in each groove move toward each other in their opening movements, and in order to prevent injurious degreeof iiexure, the grooves are made of such a width that the wings will meet and bear one against the other, before either has been bent to an injurious extent.

The wings in each groove may be made separate and independent one of the other, as shown in Fig. 11, or may have adjacent ends integrally connected as shown in Fig. 12.V .In Figs. 1, 5, 6, 7, 8 and 9, is shown what is styled the hairpm shape, the ends of the wings being so constructed and arranged that the exure of either wing effects the flexure of the other. In the construction shown in Fig. v9, adjacent ends of the wings are formed with hook shaped portions a,

the portion a on one wing as 5 fitting around a pin 6 and within the corresponding part of the other wing t, lt is preferred,

however, that the oppositely disposed wings Y 4 and 5 have two adjacent ends, and preferably the inner ends, integrally connected, and the connecting portion so bent that the respective wings will bear against opposite sides of the groove due to the resilience of the connecting portion, as shown in Figs. 1, 5, 6 and ''.v While the movement of the wings along the grooves may be prevented by any suitable means, such movementcan be conveniently prevented llb' pins 6, which are preferably made of su ciently small diameter as not torglimit the opening movement 10. lt will be observed that in the severaly constructions, only those portions having small movements, when the wings are shifted, bear upon theI raised portions 9.

lt will be seen by reference to Fig. l,the

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Huid sowing through the ,same groove are pushed toward each Aother and will strike one against the other' as shown by'dotted lines in Figs. 1, 5, .7 and 8. As -both each will' act asa stop to prevent further movement of the other.

1n lieu of employing pins 6 for supporting the wings, the inner ends of the plateaus 11, or bodies of metal intermediate adjacent grooves, may be constructed to serve as bearings for the closed ends of the hair-'spring form of valves as shown in Fig. 5. When such'constructi'on is employed, one wing 4of a pairwill be arranged in one groove and the other member of the pair in an adjacent groove, and the flow from bothports, connecting with a common passage 'or recess 10, will be controlled by wlngs-integrallyconnected at their inner ends. Inthe construc-v tion shown in Fig. 1, the members. of a pair are forced toward each other, and one serves as astop for the other, while. in Athe con struction shown in Fig. 5, a wing of l,one

pair. is moved ytoward a wing of another pair, and the wingsv of adjacent pairs will Aoperate as stops, the one for the other'. In Fig. 6 is shown a construction having both wings of one pair in a groove, while the grooveson bothsides of the latter, have arranged thereina Wing 4 of one pair and the wing 5of the other pair. ln this construction, pins 6 serve as bearings for the loop portion of one pair, -and the loop or connectl mg portion of this pairA serves as ai bearing `ence along the wings rendersit possible for the wings to withstand a greater pressure.` That is the wings are rendered more *rigid without any increase in the thickness'of the material employed. The same, end may be attained by employing an integral construction, .fe., integrally connecting both ends of the Wings as shown in Fig. 12. As shown in Fig. 1:1, the wings or valves may. be made independent ofeach other, 'in which case their end portions bear Iagainst pins 12 arranged adjacent -of opposite lends of the grooves. ln lieu of employing pins for preventing movements of the wings, longitudiassagesor recesses 10 i divides and escapes t rough ports' 3f .opening intoadjacentgrooves, sothat wings in will be subjected to substa'ntially vequal but oppositely actmg-pressures,

weer t .n a'lly ofthe grooves, rings13 lmay be placed around -a raised v portion of the block as shown in Figs. 11 and 12'.

No claim is made herein tov-the construc- 'tion shown and described in application No.

95333, sled May 413151916.

vI claim herein as my invention: l 1. A valve mechanism for pumps having incombi-nation two resilient valves adapted to move in opposite directions in their opening and closing movements, each valve being controllable by the other as regards its opening movement.`

2. A valve mechanism for pumps having in 'i combination two oppositely arranged ports, valves vcontrolling said ports, each valve being adapted to serve as a stop to limit the opening movement of the other.

3. A valve y,mechanism for pumps having in combination two oppositely arrianged ports, resilient wings adapted to nolimally close said ports, and to operate as stops, the one for the other, as regards their opening movements. y .f 4. A valve mechanism for pumps having in combinationy two oppositely arranged vports,-two valves yieldingly held in closed position andk adapted to be operated by op- -positely applied Huid pressure,land to abut the one against the other inrtheiropening movements. y

5. vA valve mechanism for pumps having in combination two oppositely arranged ports, two normally closed resilient valves,

adapted to be shifted to open position and into the range of movement of each other byoppo'sitely applied Huid pressure. j

6. A valve mechanism for pumps havingr in combination two oppositelyl disposedl ports, two resilient wings arranged to normally close said ports, and havin portions of their ends curved to engagea Xed abutment, whereby said wings are held as against longitudinal movement.

i1-.A valve mechanism for pumps, having in combination a valve block provided with a groove and having ports in the oppositewalls of the groove, valves of thin resilient strips of metal normally closing said ports,

the distance between the opposite sides of v the grooves being so proportioned as re gards'the desired maximum opening movements of the valves, that each valve will operate as a stop to limit the opening movek ment ofy the other valve.

8. A valve mechanism for pumps having 'in combination a valve block provided with a groove and having ports in thev opposite Walls of the groove, a hair-pin shaped strip of resilient metal arranged in said groove with the wings 'bearing against the .opposite walls of the groove and an abutment bearinga einst the closed end of the hair pin.

' 9. .valve mechanism for pumps having meow@ y in combination a valve block provided with ing adapted to limit the opening movement a plurality of grooves and having ports in of the other Wing in the saine groove. the opposite Walls of the grooves, hair-pin In testimony whereof, I have hereunto set 10 shaped strips of resilient metal, having their my hand.

5 Wings arranged in said grooves and nor- HARRY D. HILDEBRAND.

mally closing the ports opening into "the Witness: grooves, each of the Wings in each groove be- G., G. Timur.. 

